Environmental Documents

Related Projects

Multilingual information

SR 520 Bridge Replacement and HOV Program

Construction of an elevated “work bridge” across Union Bay continues just to the north of State Route 520. The work bridge, nearly a mile long when completed, will serve as a platform for building a new West Approach Bridge North linking Seattle with the new SR 520 floating bridge now under construction.

Building a new and improved SR 520 corridor

The SR 520 Bridge Replacement and HOV Program will enhance safety by replacing the aging floating bridge and keep the region moving with vital transit and roadway improvements throughout the corridor. The 12.8-mile highway begins at I-5 in Seattle and extends to SR 202 in Redmond.